Contents

Inorganic Materials

Vol. 61, No. 1-6, 2025

SUBSTANCE ANALYSIS

Electrothermal Atomic Absorption Spectrometry with Ballast in a Rapidly Heated Graphite Furnace: Lead and Cadmium Assay in Seawater

A. Yu. Sadagov and Yu. M. Sadagov p. 1  abstract

Development of an Ionometric Technique of Fluorine Determination for the Certification of a Standard Reference Material of a Mineral-Based Feed Additive

I. B. Maksakova, L. V. Eliseeva, and A. V. Korshunova p. 10  abstract

Comparative Evaluation of Methods of Gas Chromatographic Determination of Hydrogen Used for Production of Isopropyl Alcohol

V. O. Vetrenko, O. A. Golovanova, and N. I. Buchatskaya p. 17  abstract

The Impact of Formic Acid as a Mobile Phase Additive on the Retention of Dead Time Markers in Reversed-Phase High-Performance Liquid Chromatography

O. I. Grinevich and T. M. Baigil’diev p. 22  abstract

A Total Reflection X-Ray Fluorescence Study of Strontium Substitution for Lanthanum in Lanthanum Ferrites for Gas Sensors

D. G. Filatova, V. B. Platonov, N. M. Malinin, A. A. Troitskiy, and M. N. Rumyantseva p. 26  abstract

Determination of Methyl Methacrylate in Aqueous Extracts of Polymethyl Methacrylate by Micellar Electrokinetic Chromatography

N. V. Mikhailova, S. V. Stakhanova, Yu. V. Ermolenko, U. L. Kobets, E. G. Vinokurov, I. N. Semenova, and Ya. N. Kharakh p. 32  abstract

Influence of Low-Energy Accelerated Electrons on Structural Characteristics of Unsaturated Fatty Acids Studied by High-Resolution Liquid Chromatography–Mass Spectrometry

A. V. Brown, V. S. Ipatova, U. A. Bliznyuk, P. Yu. Borshchegovskaya, A. P. Chernyaev, I. A. Ananyeva, and I. A. Rodin p. 37  abstract

Development of a Set of Reference Materials for Spectral Analysis of Anisotropic Electrical Steel

E. V. Nosikova, E. V. Yakubenko, M. Yu. Lepilina, A. M. Mikhailov, T. N. Ermolaeva, and V. B. Baranovskaya p. 46  abstract

Platinum Extraction from Aqueous Solutions Using Tetraalkylammonium Dicyanamides

N. Ya. Mokshina, V. R. Gubanova, V. N. Danilov, and S. I. Niftaliev p. 56  abstract

Textile-Based Indicator for Acid-Base Titration

S. A. Efanov, T. N. Kudryavtseva, E. V. Grekhneva, and E. A. Dorofeeva p. 62  abstract

A Laboratory Study of the Main Weathering Processes of Oil Spilled in the Marine Environment

K. Ossipov and T. A. Maryutina p. 66  abstract

Determination of Papaverine Hydrochloride and Dibazole in Their Combined Presence by Derivative Spectrophotometry

N. B. Shestopalova p. 80  abstract

A Comparison of Results from Determining the Hydrocarbon Group-Type Composition of Petroleum Samples Obtained Using Various Test Methods of Open-Column Liquid Chromatography

D. I. Panyukova, K. Ossipov, E. Yu. Savonina, and T. A. Maryutina p. 87  abstract

MATHEMATICAL RESEARCH METHODS

Estimating the Parameters of the Gamma Distribution

A. I. Orlov p. 95  abstract

Modified Gradient Descent Algorithm Along Nodal Straight Lines in a Regression Analysis Problem

O. A. Golovanov and A. N. Tyrsin p. 104  abstract

PHYSICAL METHODS OF RESEARCH AND CONTROL

Determination of Thermophysical Properties of Materials via Indirect Monitoring of the Temperature of a Medium Adjacent to a Wall

M. Yu. Ryabchikov, E. S. Ryabchikova, E. G. Neshporenko, T. G. Sukhonosova, and E. I. Vasilyeva p. 113  abstract

Technological Monitoring of Diffusible Hydrogen in Steels

Yu. A. Yakovlev, A. M. Polyanskiy, and V. A. Polyanskiy p. 125  abstract

Estimation of the Dislocation Density on GaAs Wafers Using Machine Vision

R. A. Verbitsky, V. D. Latonov, Yu. V. Syrov, and S. N. Knyazev p. 132  abstract

Study of the Structure, Microhardness, and Magnetic Characteristics of 04Kh17N8T Austenitic Steel with Variable Surface-Hardening Modes

K. D. Kryucheva, E. A. Putilova, S. M. Zadvorkin, L. S. Goruleva, and R. A. Savrai p. 138  abstract

Dielectric Properties of High-Energy Microwave-Absorbing Composites

A. S. Sivak, S. V. Trigorlyi, S. G. Kalganova, Yu. A. Kadykova, G. V. Sakhadzhi, T. P. Sivak, and E. Yu. Vasinkina p. 144  abstract

Effect of Biaxial Mechanical Loading on the Magnetic Characteristics and Harmonic Spectrum of 65G Spring Steel

I. S. Malakhov, R. A. Sokolov, and K. R. Muratov p. 150  abstract

Properties of the Bi2Co1/3Cu1/3Ni1/3Nb2O9+Δ Mixed-Cation Pyrochlore Oxide

A. P. Petrakov, K. A. Badanina, A. A. Selyutin, A. V. Koroleva, S. V. Nekipelov, B. A. Makeev, and N. A. Zhuk p. 156  abstract

Estimating the Longevity of Carbon Stripper Foils of Cyclotron Accelerators

I. V. Gol’tyaev, Yu. S. Baryshnikov, S. V. Grigorenko, O. L. Veresov, I. V. Lazarev, I. A. Rodionov, Z. G. Lyullin, and D. K. Kostrin p. 162  abstract

Temperature Control by a Digital Thermographic Camera of Aluminum Sheets under High-Density Electric Pulsing

A. Kh. Valeeva, I. Sh. Valeev, and M. V. Markushev p. 171  abstract

Properties of Polymer Composite Fiberglass Rebar Cured Using the Microwave Technique

A. V. Mamontov, V. N. Nefedov, and S. A. Khritkin p. 180  abstract

Thermal Transformations and Reactivity of Polyacrylonitrile in Heat Treatment Processes

S. B. Nechushkin, Yu. B. Nechushkin, M. A. Sitnov, and V. V. Kozlov p. 186  abstract

MATERIALS MECHANICS: STRENGTH, DURABILITY, SAFETY

The Spectral Analysis of the State Parameters of Technical Systems in the Regular and Damaged States

N. A. Makhutov and M. M. Gadenin p. 196  abstract

Improvement of the Method of Digital Image Correlation in the Field of Analyzing the Processes of Deformation and Fracture of Composites

E. M. Strungar’, D. S. Lobanov, O. A. Staroverov, and K. A. Pelenev p. 204  abstract

A Study of the Tribological Properties of Surface MAO Composites on D16T Alloy

O. V. Somov and V. A. Vasin p. 212  abstract

Evaluation of the Accuracy of Simplified Methods for Ply-by-Ply Calculation of Composite Structures

D. D. Vlasov and A. N. Polilov p. 221  abstract

Rapid Estimation of the Fatigue Limit of Polymer Composite Materials Using Infrared Thermography

D. G. Solomonov and M. Sh. Nikhamkin p. 228  abstract

Early Damage Accumulation Caused by Cyclic Loading of a Composite Plate with a Hole

S. I. Eleonsky, P. N. Gusev, A. G. Kalinin, and V. S. Pisarev p. 236  abstract

Reconstruction of the Distribution of Eigenstrains and Residual Stresses across the Cross-Section of the Beam by the Cutting Method

I. E. Keller, D. S. Petukhov, D. S. Dudin, G. L. Permyakov, D. N. Trushnikov, and A. B. Maksimov p. 252  abstract

Microspherical Single Crystal Diamond Indenter as a Means of Obtaining Stress-Strain Diagrams

A. S. Kushnereva, G. Kh. Sultanova, A. S. Useinov, A. A. Rusakov, and V. V. Solovyev p. 262  abstract

The Static Strength of Pultruded Fiberglass Composites at Elevated and Reduced Temperatures under a Complex-Stress State

O. A. Staroverov, A. M. Kuchukov, V. A. Mel’nikova, A. S. Elkin, and I. V. Sergeichev p. 268  abstract

Evolution of Strains and Damages at Cyclic Elastoplastic Deformation with Exposures and Imposition of Additional Load Pulsations on Them

M. M. Gadenin p. 279  abstract

Assessing the Capabilities of Instrumented Indentation to Test the Mechanical Properties of Polyethylene

A. A. Vinogradova, K. V. Gogolinskiy, and E. K. Shchiptsova p. 288  abstract

Predicting the Degradation of a Petrochemical Reactor Wall Using Hydrogen-Saturated Samples

A. V. Nechaeva, V. A. Polyanskiy, V. V. Shalagaev, and Yu. A. Yakovlev p. 299  abstract

Cyclic Viscoelasticity of Polymethyl Methacrylate

A. S. Kurkin and A. S. Kiselev p. 312  abstract